Which of the following is a type of test for HIV?

The correct choice identifies a recognized method for testing HIV, which involves analyzing the genetic material of the virus. Genotypic tests are essential for understanding the viral load and resistance patterns of HIV, assisting healthcare providers in selecting appropriate antiretroviral therapies for patients. By evaluating the genetic makeup of the virus, these tests help determine how the virus might respond to various treatment options, which is critical for effective management of HIV infection.

Other types of tests, such as immunoassays, ELISA, and Western blot, play significant roles in the detection of HIV antibodies and proteins but fall under different categories. Immunoassays and ELISA are used to screen for the presence of antibodies to HIV, while the Western blot is typically used as a confirmatory test following a reactive result from an ELISA. These tests focus on the immune response rather than the genetic characteristics of the virus itself.